﻿using System;

    class SequenceOfTenNumbers
    {
        static void Main()
        {
            int[] sequenceOfNumbers=new int[10]{2,-3,4,-5,6,-7,8,-9,10,-11};
            foreach (var num in sequenceOfNumbers)
            {
                Console.Write(" {0} ",num);
            }
        }
    }

